Elasticsearch docvalue_fields trims precision value

Hello,

I have a scaled float field in my document, say "data_rate" : 342.43215678 . When I use docvalue_fields in query on this data_rate field, I'm getting the result as "data_rate" : 342.4321 and rest of the value is trimmed off.

Could someone please help me to solve this ?

Thanks in Advance.